639746021

素因数分解:

${\mathrm{37}}^2\times {\mathrm{313}}^1\times {\mathrm{1493}}^1$

素因数の和:1880

約数の個数: 12

約数和(自身を含む): 660046212

約数和(自身を除く): 20300191

約数列:

[1, 37, 313, 1369, 1493, 11581, 55241, 428497, 467309, 2043917, 17290433, 639746021]

約数ペア:

[(1, 639746021), (37, 17290433), (313, 2043917), (1369, 467309), (1493, 428497), (11581, 55241)]